CD Materials By Bill. Commercial CDs Materials/Process: –Injection molded PC imprinted with bumps by master stamp. –Aluminum is sputtered over bumps –Protective.

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Presentation transcript:

CD Materials By Bill

Commercial CDs Materials/Process: –Injection molded PC imprinted with bumps by master stamp. –Aluminum is sputtered over bumps –Protective acrylic layers sprayed over top –Label painted on top of acrylic.

Commercial CDs

Commercial CDs Mastering: process of creating a stamper to be used in the injection molding stage of manufacturing compact discs. –A laser etches the digital pattern onto a highly polished glass disc coated with photoresist –"glass master" is then cured (developed) with ultraviolet light and rinsed off –A metal mold is electroformed –The mold is removed and electroplated with nickel to be used as the stamper.

Commercial CDs Glass mastering

Commercial CDs 10X

Commercial CDs 50X

Commercial CDs 75X

Commercial CDs 100X

Commercial CDs 50x: No track

CD-Rs Materials/Process: –Organic dye between the PC substrate and the reflective layer –PC substrate has is etched with a pregroove

CD-Rs Materials/Process: –Dyes and color Dye MaterialRefl: AuRefl: AgQuality CyanineGreenGreen/blueCheapest PhthaloCyanineGold-Highest Metallized Azo-Dark blue? Advanced PhthaloCyanine Gold- FormazanGreen/gold-

CDRs 10X: dirt

CDRs 100X